Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

1977 Qjet coughs and sputters

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stushug:
I purchased the SR kit, and redid the carb today. I got a little bit of improvement, but the car still won't run right. Now, if I go pedal to the floor, it still coughs and sputters until I back off the throttle to about 3/4 to the floor. The things I found wrong when I opened the carb were that the old float was partially disintegrated and the spring for the secondary plates was too tight. I'm not sure what to check next.

Cliff Ruggles:
Is that the only place you are having issues, going to full throttle?

stushug:
Yes. If traveling at lower speeds and I go wide open, the car starts to sputter, it has even stalled out a few times. As the rpms rise, it behaves a little better, but it never fully recovers. When it's acting like that, if I back off the throttle just a bit, the problem mostly disappears. As long as it's at full throttle though, the problem persists.  Thanks for the help so far, Cliff!

Cliff Ruggles:
Did you install the new secondary plastic cam and spring from the kit?

stushug:
Yes I did.

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